Yusmeiro Petit is getting noticed. Not just around the National League West but around the Giants' clubhouse.

"I've always thought he was a guy who would figure it out at some point" Ryan Vogelsong said. "It's really good to see."

Petit's fourth straight start on Wednesday was his shortest but he retired his first 11 batters - 38 of 39 dating to his previous start a one-hitter - and showed positive signs in the Giants' 4-3 victory over the Rockies.

Petit exited trailing 3-1 in the sixth inning and the Giants pulled ahead in the eighth on bases-loaded singles by Marco Scutaro and Brandon Belt. Brandon Crawford and pinch-hitter Angel Pagan opened the rally with singles and were sacrificed by Ehire Adrianza. Buster Posey pinch hit and was walked intentionally to fill the bases.

Santiago Casilla replacing closer Sergio Romo who appeared in three straight games threw a scoreless ninth for the save.

Petit has faced the Rockies and Diamondbacks twice and his next assignment will be far removed from the Colorado-Arizona corridor. It's targeted for Tuesday in New York against the Mets. It would be one of his final three starts giving him a seven-start audition for the 2014 rotation.

Before the game manager Bruce Bochy suggested Petit could get a long look in spring training.

"He's already made enough noise to think he could help us next year" Bochy said. "In what role that'll be determined."

Petit's perfect-game bid in his previous start lasted for 26 outs until Arizona's Eric Chavez broke it up with a single to right in front of a charging Hunter Pence. Wednesday the first baserunner off Petit was Corey Dickerson who drew a two-out walk in the fourth. Michael Cuddyer and Nolan Arenado both hit singles giving the Rockies their first run.

Petit got through the fifth quickly but never survived the sixth. Four of the Rockies' first six batters in the inning singled including RBI hits by Arenado and Charlie Culberson and Petit was pulled from the game with two outs and two runners on neither of whom scored.